CaC2 + 2H2O -> C2H2 + Ca(OH)2?
If 64 g of CaC2 reacts with 64 g of H2O, which is the excess reactant, and which is the limited reactant?
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If 64 g of CaC2 reacts with 64 g of H2O, which is the excess reactant, and which is the limited reactant?
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moles CaC2: 64 g/ 64.1 g /mole=1 mole
moles H2O: 64 g/ 18 g /mole= 3.6 moles
from bal. rxn., 1 mole of CaC2 reacts with 2 moles H2O
H2O is excess reactant
CaC2 is limiting reactant